适合低湿度运行的亲水性气体扩散层研究数据

数据内容：一种改性的亲水气体扩散层研究过程产生的SEM图、接触角图、孔径分布数据、电池测试数据、电化学阻抗数据等。
采集方案：制备了一系列不同PAN含量的气体扩散层，不同的样品送至检测中心分析测试其SEM图、接触角图和孔径分布图，进一步的将其与CCM组装成膜电极，组装单电池进行测试，分别测试了在RH30%和RH100%的气体条件下的电池性能和电化学阻抗。制备了最有PAN含量下的不同碳粉厚度的气体扩散层，进一步的将其组装成单电池进行测试，测试了在RH30%下的电池性能和电化学阻抗。
采集地点：中科院大连化物所燃料电池研究室。
设备情况：电镜, JSM-7800F, IT300LA, JEOL；接触角测试仪KRUSS,DSA100；压汞仪Quanta chrome PoremasterGT 60；孔径分析仪 PSDA-20；单电池测试台
采集时间：2020.7-2021.5

Data Content: SEM images, contact angle images, pore size distribution data, battery test data, electrochemical impedance spectroscopy (EIS) data and other relevant data generated during the research of a modified hydrophilic gas diffusion layer.
Collection Protocol: A series of gas diffusion layers with different PAN contents were prepared. Selected samples were sent to the testing center for SEM imaging, contact angle measurement and pore size distribution analysis. Subsequently, these samples were assembled into membrane electrode assemblies (MEAs) with catalyst coated membranes (CCMs) and tested in single cells. The cell performance and EIS were measured under gas atmospheres with 30% relative humidity (RH30%) and 100% relative humidity (RH100%), respectively. Additionally, gas diffusion layers with varying carbon powder thicknesses at the optimal PAN content were fabricated, assembled into single cells and tested for cell performance and EIS under RH30% condition.
Collection Location: Fuel Cell Research Laboratory, Dalian Institute of Chemical Physics, Chinese Academy of Sciences.
Equipment Used: Electron microscopes: JSM-7800F, IT300LA (JEOL); Contact angle goniometer: KRUSS DSA100; Mercury porosimeter: Quanta chrome PoremasterGT 60; Pore size analyzer: PSDA-20; Single cell test bench.
Collection Period: July 2020 to May 2021.